The brief of this design commission is the remodeling of a penthouse loft of a 1950’s industrial building in Farringdon, London. The clients collect Op-Art paintings by Bridget Riley amongst others, and the organisational patterns of are generated from similar mathematical patterns, producing a range of optical effects on a three-dimensional stair, glass treatment, bespoke wallpaper and a dynamic floor pattern. In addition, a new kitchen will be installed, and the bathrooms will be remodelled. Significant structural works will be carried out to install the new stairway to the mezzanine, where an informal office mixes with living space.